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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 68.19
edited by Xiaoling
on 2022/05/25 15:28
Change comment: There is no comment for this version
To version 77.31
edited by Xiaoling
on 2022/06/10 08:43
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -11,12 +11,15 @@
11 11  
12 12  
13 13  
14 +
15 +
16 +
14 14  = 1.Introduction =
15 15  
16 16  == 1.1 What is LT Series I/O Controller ==
17 17  
18 18  (((
19 -The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
22 +The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
20 20  )))
21 21  
22 22  (((
... ... @@ -24,7 +24,7 @@
24 24  )))
25 25  
26 26  (((
27 -The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
30 +The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
28 28  )))
29 29  
30 30  (((
... ... @@ -48,6 +48,8 @@
48 48  == 1.2  Specifications ==
49 49  
50 50  (((
54 +
55 +
51 51  **Hardware System:**
52 52  )))
53 53  
... ... @@ -70,6 +70,7 @@
70 70  )))
71 71  )))
72 72  
78 +
73 73  (((
74 74  **Interface for Model: LT22222-L:**
75 75  )))
... ... @@ -93,6 +93,7 @@
93 93  Power Input 7~~ 24V DC. 
94 94  )))
95 95  
102 +
96 96  (((
97 97  **LoRa Spec:**
98 98  )))
... ... @@ -157,6 +157,8 @@
157 157  
158 158  )))
159 159  
167 +
168 +
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -168,6 +168,7 @@
168 168  * Counting
169 169  
170 170  
180 +
171 171  == 1.4  Applications ==
172 172  
173 173  * Smart Buildings & Home Automation
... ... @@ -178,6 +178,7 @@
178 178  * Smart Factory
179 179  
180 180  
191 +
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -204,6 +204,7 @@
204 204  [[image:1653297104069-180.png]]
205 205  
206 206  
218 +
207 207  = 3. Operation Mode =
208 208  
209 209  == 3.1 How it works? ==
... ... @@ -218,6 +218,8 @@
218 218  
219 219  )))
220 220  
233 +
234 +
221 221  == 3.2 Example to join LoRaWAN network ==
222 222  
223 223  (((
... ... @@ -259,6 +259,7 @@
259 259  [[image:1653298044601-602.png||height="405" width="709"]]
260 260  
261 261  
276 +
262 262  == 3.3 Uplink Payload ==
263 263  
264 264  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -271,6 +271,7 @@
271 271  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
272 272  
273 273  
289 +
274 274  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
275 275  
276 276  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -323,6 +323,7 @@
323 323  ** DO1 LED is off in both case
324 324  
325 325  
342 +
326 326  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
327 327  
328 328  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -416,6 +416,7 @@
416 416  )))
417 417  
418 418  
436 +
419 419  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
420 420  
421 421  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -460,6 +460,8 @@
460 460  
461 461  )))
462 462  
481 +
482 +
463 463  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
464 464  
465 465  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -541,6 +541,7 @@
541 541  )))
542 542  
543 543  
564 +
544 544  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
545 545  
546 546  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -585,6 +585,8 @@
585 585  
586 586  )))
587 587  
609 +
610 +
588 588  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
589 589  
590 590  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -611,6 +611,7 @@
611 611  
612 612  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
613 613  
637 +
614 614  (% style="color:#4f81bd" %)**Trigger base on current**:
615 615  
616 616  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -619,6 +619,7 @@
619 619  
620 620  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
621 621  
646 +
622 622  (% style="color:#4f81bd" %)**Trigger base on DI status**:
623 623  
624 624  DI status trigger Flag.
... ... @@ -706,6 +706,7 @@
706 706  When device got this command, it will send the MOD6 payload.
707 707  
708 708  
734 +
709 709  === 3.3.7 Payload Decoder ===
710 710  
711 711  (((
... ... @@ -714,6 +714,8 @@
714 714  
715 715  )))
716 716  
743 +
744 +
717 717  == 3.4 ​Configure LT via AT or Downlink ==
718 718  
719 719  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -722,16 +722,18 @@
722 722  There are two kinds of Commands:
723 723  )))
724 724  
725 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
753 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
726 726  
727 727  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
728 728  
729 729  
758 +
730 730  === 3.4.1 Common Commands ===
731 731  
732 732  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
733 733  
734 734  
764 +
735 735  === 3.4.2 Sensor related commands ===
736 736  
737 737  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -755,6 +755,7 @@
755 755  )))
756 756  
757 757  
788 +
758 758  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
759 759  
760 760  Set work mode.
... ... @@ -776,6 +776,7 @@
776 776  )))
777 777  
778 778  
810 +
779 779  ==== 3.4.2.3 Poll an uplink ====
780 780  
781 781  * AT Command:
... ... @@ -792,9 +792,10 @@
792 792  **Example**: 0x08FF, ask device to send an Uplink
793 793  
794 794  
827 +
795 795  ==== 3.4.2.4 Enable Trigger Mode ====
796 796  
797 -Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
830 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
798 798  
799 799  * AT Command:
800 800  
... ... @@ -815,6 +815,7 @@
815 815  )))
816 816  
817 817  
851 +
818 818  ==== 3.4.2.5 Poll trigger settings ====
819 819  
820 820  Poll trigger settings,
... ... @@ -831,6 +831,7 @@
831 831  )))
832 832  
833 833  
868 +
834 834  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
835 835  
836 836  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -854,6 +854,7 @@
854 854  )))
855 855  
856 856  
892 +
857 857  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
858 858  
859 859  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -881,6 +881,7 @@
881 881  )))
882 882  
883 883  
920 +
884 884  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
885 885  
886 886  Set DI2 trigger.
... ... @@ -908,9 +908,10 @@
908 908  )))
909 909  
910 910  
948 +
911 911  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
912 912  
913 -Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
951 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
914 914  
915 915  * AT Command:
916 916  
... ... @@ -923,19 +923,20 @@
923 923  
924 924  (% class="box infomessage" %)
925 925  (((
926 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
964 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
927 927  )))
928 928  
929 929  
968 +
930 930  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
931 931  
932 -Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
971 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
933 933  
934 934  * AT Command:
935 935  
936 936  (% class="box infomessage" %)
937 937  (((
938 -**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
977 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
939 939  )))
940 940  
941 941  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -942,10 +942,11 @@
942 942  
943 943  (% class="box infomessage" %)
944 944  (((
945 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
984 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
946 946  )))
947 947  
948 948  
988 +
949 949  ==== 3.4.2.11 Trigger – Set minimum interval ====
950 950  
951 951  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -965,6 +965,7 @@
965 965  )))
966 966  
967 967  
1008 +
968 968  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
969 969  
970 970  * AT Command:
... ... @@ -997,6 +997,7 @@
997 997  )))
998 998  
999 999  
1041 +
1000 1000  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1001 1001  
1002 1002  * AT Command:
... ... @@ -1059,6 +1059,7 @@
1059 1059  DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
1060 1060  
1061 1061  
1104 +
1062 1062  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1063 1063  
1064 1064  * AT Command:
... ... @@ -1087,6 +1087,7 @@
1087 1087  Device will upload a packet if downlink code executes successfully.
1088 1088  
1089 1089  
1133 +
1090 1090  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1091 1091  
1092 1092  * AT Command:
... ... @@ -1137,15 +1137,16 @@
1137 1137  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1138 1138  
1139 1139  
1184 +
1140 1140  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1141 1141  
1142 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1187 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1143 1143  
1144 1144  * AT Command:
1145 1145  
1146 1146  (% class="box infomessage" %)
1147 1147  (((
1148 -**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1193 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1149 1149  )))
1150 1150  
1151 1151  * Downlink Payload (prefix 0xA5):
... ... @@ -1156,6 +1156,7 @@
1156 1156  )))
1157 1157  
1158 1158  
1204 +
1159 1159  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1160 1160  
1161 1161  * AT Command:
... ... @@ -1181,6 +1181,7 @@
1181 1181  )))
1182 1182  
1183 1183  
1230 +
1184 1184  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1185 1185  
1186 1186  Clear counting for counting mode
... ... @@ -1200,6 +1200,7 @@
1200 1200  )))
1201 1201  
1202 1202  
1250 +
1203 1203  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1204 1204  
1205 1205  * AT Command:
... ... @@ -1222,6 +1222,8 @@
1222 1222  
1223 1223  )))
1224 1224  
1273 +
1274 +
1225 1225  == 3.5 Integrate with Mydevice ==
1226 1226  
1227 1227  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
... ... @@ -1240,6 +1240,7 @@
1240 1240  
1241 1241  [[image:image-20220524094641-12.png||height="402" width="718"]]
1242 1242  
1293 +
1243 1243  **Step 3**: Create an account or log in Mydevices.
1244 1244  
1245 1245  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1262,6 +1262,7 @@
1262 1262  [[image:image-20220524094909-5.png||height="341" width="734"]]
1263 1263  
1264 1264  
1316 +
1265 1265  == 3.6 Interface Detail ==
1266 1266  
1267 1267  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1271,6 +1271,7 @@
1271 1271  [[image:1653356991268-289.png]]
1272 1272  
1273 1273  
1326 +
1274 1274  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1275 1275  
1276 1276  (((
... ... @@ -1286,52 +1286,106 @@
1286 1286  [[image:1653357170703-587.png]]
1287 1287  
1288 1288  (((
1342 +(((
1289 1289  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1290 1290  )))
1345 +)))
1291 1291  
1347 +(((
1348 +
1349 +)))
1292 1292  
1351 +(((
1293 1293  **Example1**: Connect to a Low active sensor.
1353 +)))
1294 1294  
1355 +(((
1295 1295  This type of sensor will output a low signal GND when active.
1357 +)))
1296 1296  
1297 -* Connect sensor’s output to DI1-
1298 -* Connect sensor’s VCC to DI1+.
1359 +* (((
1360 +Connect sensor’s output to DI1-
1361 +)))
1362 +* (((
1363 +Connect sensor’s VCC to DI1+.
1364 +)))
1299 1299  
1300 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1366 +(((
1367 +So when sensor active, the current between NEC2501 pin1 and pin2 is：
1368 +)))
1301 1301  
1302 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1370 +(((
1371 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1372 +)))
1303 1303  
1304 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1374 +(((
1375 +If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1376 +)))
1305 1305  
1378 +(((
1379 +
1380 +)))
1306 1306  
1382 +(((
1307 1307  **Example2**: Connect to a High active sensor.
1384 +)))
1308 1308  
1386 +(((
1309 1309  This type of sensor will output a high signal (example 24v) when active.
1388 +)))
1310 1310  
1311 -* Connect sensor’s output to DI1+
1312 -* Connect sensor’s GND DI1-.
1390 +* (((
1391 +Connect sensor’s output to DI1+
1392 +)))
1393 +* (((
1394 +Connect sensor’s GND DI1-.
1395 +)))
1313 1313  
1397 +(((
1314 1314  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1399 +)))
1315 1315  
1316 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1401 +(((
1402 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1403 +)))
1317 1317  
1318 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1405 +(((
1406 +If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1407 +)))
1319 1319  
1409 +(((
1410 +
1411 +)))
1320 1320  
1413 +(((
1321 1321  **Example3**: Connect to a 220v high active sensor.
1415 +)))
1322 1322  
1417 +(((
1323 1323  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1419 +)))
1324 1324  
1325 -* Connect sensor’s output to DI1+ with a serial 50K resistor
1326 -* Connect sensor’s GND DI1-.
1421 +* (((
1422 +Connect sensor’s output to DI1+ with a serial 50K resistor
1423 +)))
1424 +* (((
1425 +Connect sensor’s GND DI1-.
1426 +)))
1327 1327  
1428 +(((
1328 1328  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1430 +)))
1329 1329  
1330 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1432 +(((
1433 + [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1434 +)))
1331 1331  
1332 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1436 +(((
1437 +If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1438 +)))
1333 1333  
1334 1334  
1441 +
1335 1335  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1336 1336  
1337 1337  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1339,6 +1339,7 @@
1339 1339  [[image:1653357531600-905.png]]
1340 1340  
1341 1341  
1449 +
1342 1342  === 3.6.4 Analog Input Interface ===
1343 1343  
1344 1344  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
... ... @@ -1367,6 +1367,7 @@
1367 1367  [[image:1653357648330-671.png||height="155" width="733"]]
1368 1368  
1369 1369  
1478 +
1370 1370  === 3.6.5 Relay Output ===
1371 1371  
1372 1372  (((
... ... @@ -1810,6 +1810,11 @@
1810 1810  (((
1811 1811  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1812 1812  
1922 +
1923 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1924 +
1925 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1926 +
1813 1813  
1814 1814  )))
1815 1815  
... ... @@ -1824,10 +1824,8 @@
1824 1824  )))
1825 1825  
1826 1826  (((
1827 -Please see this link for how to debug:
1941 +Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1828 1828  
1829 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1830 -
1831 1831  
1832 1832  )))
1833 1833  
... ... @@ -1836,9 +1836,7 @@
1836 1836  )))
1837 1837  
1838 1838  (((
1839 -See this link for trouble shooting:
1840 -
1841 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1951 +See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1842 1842  )))
1843 1843  
1844 1844  (((
... ... @@ -1850,9 +1850,7 @@
1850 1850  )))
1851 1851  
1852 1852  (((
1853 -It might be about the channels mapping. Please see this link for detail:
1854 -
1855 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1963 +It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1856 1856  )))
1857 1857  
1858 1858  (((
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